toh tuck avenue's ascent is much more steep than holland hill
actually, and it is very difficult to do a left turn &
overdrive all the way up the hill. a right turn prob would provide
enough initial momentum to ascent it, but not the left turn.
anyway due to the fact the svc is only highly loaded during peak
hours & the frequency is already so long, there's no point in
putting bendies & making the frequency go to something
unacceptable, like 17-25 mins.